UDNS issue

[Michael Tokarev]

Abhijit Pandey wrote:
> Hi Michael,
> 
> Setting $ RES_OPTIONS="udpbuf=512" ./dnsget ...   did solved the problem.

Well, as I predicted.  But how about my question - what resolver
do you have, which software/brand/version?

> I was using Rich formatting of Gmail, which probably your E-mail
> client didn't understand.

My client understands html, but your mail client decided to add
html link tags around every word with at least one dot in it,
"thinking" it is an URL which it is not.  Like all domain names
we were querying.

> I am investigating using UDNS for asynchronous queries(A and TXT
> records), in a production environment for heavy loads.
> dnsget seems to give a fairly good idea, of how to use the API's

Well, the API and the whole thing is simple enough to be useful,
I think.  It was one of the library's main goals: easy to use
interface.

> I see UDNS is being used in various distributions(Gentoo/Ubuntu/Fedora etc).
> Hopefully I wouldn't any bugs to fix.

Let's hope so.. ;)  The only problem I know of is the one you
faced already: sometimes the library is unable to work because
some resolver nearby does not understand or does not properly
implement EDNS0 extensions (which are turned off using the above
workaround).  Unfortunately, in all such cases I know (about 3
or 4 reports so far) no one replied to me telling which software
it is that's broken.  You too ignored my question of that sort...
It'd be VERY interesting to know which software misbehaves with
EDNS0 extensions in use.  Thanks!

/mjt